Shutter Only Changes When You Push It: Easy to change between CLEAN and DIRTY.However,it will not change by itself when you open or close the dishwasher door. because inside there is resistance that will keep shutter sign stay in place. | Non-Scratching Strong Magnet: The clean dirty dishwasher magnet has a full size soft magnet on the back side, which is strongly magnetic. Inbuilt industrial magnets are covered by soft silica to protect your dishwasher. | No More Confusion: Are the dishes DIRTY or CLEAN?Answer the question and end the frustration with the dishwasher indicator magnet. Easy to read, know at a glance if dishes are washed– even if you’re across the room or missing your eyeglasses! | Works On Any Dishwashers: You have two options to attach to your dishwasher. It has a full size soft magnet on the back side. In addition, the package also contains two round double-sided tapes in case that your dishwasher is not magnetic. | Widely Used: Even young children can easily read red & green colors & words. Great for any Home, Business, Restaurant or Office. Package: 1xDishwasher Magnet Clean Dirty Sign, 2xDouble Sided Adhesive tapes.